Pet step



FIG. 1 is a perspective view of the first embodiment of the pet step according to the invention, showing the front, top, and side of the pet step.

FIG. 2 is a front plan view of the pet step, the rear view, right side view and left side view being mirror images thereof.

FIG. 3 is a top plan view of the pet step, the bottom plan view being a mirror image thereof; and,

FIG. 4 is a cross-sectional top view of the first embodiment of the pet step.

The dotted lines form no part of the claimed design. 

CLAIM The ornamental design for a pet step, as shown and described. 